On Sun, Apr 19, 2015 at 11:08:00PM -0600, Jason Gunthorpe wrote: > I still suspect the expected way to write a new mid layer is to create > your own struct device and not rely on misc_device, Yes, that is the way. You can not use misc_device for anything other than creating the char node that your driver can use through the fileops you pass to it. Do not use a misc_device to create sysfs files for, or anything else, it will be wrong and racy, as you have pointed out. thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html